<?php

class UserIdentity extends CUserIdentity
{
	private $_id;

	public function authenticate()
	{
	$username=strtolower($this->username);
	$user=User::model()->find('LOWER(username)=?',array($username));
		if($user===null)
		$this->errorCode=self::ERROR_USERNAME_INVALID;
	else if(!$user->validatePassword($this->password))
		$this->errorCode=self::ERROR_PASSWORD_INVALID;
	else
		{
		$this->_id=$user->id;
		$this->username=$user->username;
		$this->errorCode=self::ERROR_NONE;
		}
	return $this->errorCode==self::ERROR_NONE;
	}
	public function getId()
	{
		return $this->_id;
	}
}
